Joe & Norm,
You guys are near my career range/experience.
3 years Computervision (CADDS ???? years were 1985-1988)
7 years CadKey(2D)
3 years SolidWorks
3 years Cimatron
My 2 cents based on what I've been through and my current opinion.
3D annotation is a good direction for the future and present when communicating with engineers, technologist and designers. But.... lets take it to the shop floor and WHAM!!!!! Comments start to surface such as "Oh sure this makes your job easier but not ours." Teaching those the shop floor is a huge investment not to mention all the plots that they're going to have to manage above and beyond the ones that the office produced.